Hwacheon Hi-TECH 230B

The Hwacheon Hi-TECH 230B is a turning center with a 10 in chuck on an A2-8 nose, Ø81 mm (Ø3.2 in) bar capacity through a Ø91 mm (Ø3.6 in) bore, and up to Ø425 mm (Ø16.7 in) of turning diameter over a Ø690 mm (Ø27.2 in) swing. It is the B member of the Hi-TECH 230 family: the 230A drops to an 8 in chuck on A2-6 with Ø65 mm (Ø2.6 in) bar and runs faster at 4,500 rpm, while the 230C shares the B's 10 in chuck, A2-8 nose and 3,500 rpm.

Three bed lengths set the work length. Turning length is 379 mm (14.9 in) on the standard bed, 619 mm (24.4 in) on the L and 1,119 mm (44.1 in) on the XL, with Z travel of 460 mm (18.1 in), 700 mm (27.6 in) and 1,200 mm (47.2 in). The XL also gets a larger Ø100 mm (Ø3.9 in) tailstock cylinder with 120 mm (4.7 in) of quill travel, where the shorter beds use Ø65 mm (Ø2.6 in). On the 230B every bed runs the same 18.5 / 15 kW (24.8 / 20.1 hp) spindle on a Ø140 mm (Ø5.5 in) front bearing, so the long-bed machines are for long shafts, not heavier cuts.

The milling versions go further than the smaller Hi-TECH 200. MC, YMC and (Y)SMC machines index the 12-station turret to 24 positions and drive live tools at 5.5 / 3.7 kW (7.4 / 5.0 hp) and 5,000 rpm with Ø20 mm end mills in ER 32 collets. The YMC and YSMC add 120 mm (4.7 in) of Y travel at 10 m/min (394 ipm), and the swing grows to Ø750 mm (Ø29.5 in). The (Y)SMC versions add a sub-spindle with an A2-5 nose and 6 in chuck, 5,000 rpm, Ø51 mm (Ø2.0 in) bar and 11 / 7.5 kW (14.8 / 10.1 hp); on the 230B it travels 640 mm (25.2 in) on the L bed or 1,140 mm (44.9 in) on the XL. On milling versions maximum turning diameter is Ø400 mm (Ø15.7 in).

X and Z rapid at 30 m/min (1,181 ipm) over 240 mm (9.4 in) of X. Turret index time is 0.344 sec/step. The control is a Fanuc 0i-TF Plus, with Siemens 828D as an option except on the 230C. The base machine weighs 5,900 kg (13,007 lb) and needs 35 kVA; the XL reaches 8,050 kg (17,747 lb), YMC and (Y)SMC versions up to 8,350 kg (18,408 lb) and 40 kVA.